The Clearinghouse is a gold mine located in Mariposa county, California at an elevation of 1,601 feet.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
Elevation: 1,601 Feet (488 Meters)
Commodity: Gold
Lat, Long: 37.67333, -119.86389
Map: View on Google Maps
Satelite View
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
Clearinghouse MRDS details
Site Name
Primary: Clearinghouse
Secondary: Anderson I
Secondary: Ferguson Original
Secondary: Moonstone
Secondary: Golden Rule
Secondary: El Portal.
Commodity
Primary: Gold
Secondary: Silver
Secondary: Lead
Secondary: Copper
Tertiary: Zinc
Location
State: California
County: Mariposa
District: Clearinghouse
Land Status
Not available
Holdings
Not available
Workings
Type: Surface/Underground
Ownership
Owner Name: Mrs. Frank E. Gallagher
Production
Year: 1937
Time Period: - 1937
Material type: AU
Description: Cp_Grade: ^ .14 Oz/Ton Ag
Year: 1937
Time Period: - 1937
Material type: ORE
Description: Cp_Grade: ^Original .454 Oz/Ton Au
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Year: 1860
Years of Production:
Organization:
Significant: N
Deposit Size: M
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Sierra Nevada
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Late Permian
Analytical Data
Not available
Materials
Ore: Sphalerite
Ore: Gold
Ore: Silver
Gangue: Quartz
Comments
Comment (Commodity): THE SULFIDE CONTENT OF THE ORE IS ABOUT TWICE AS GREAT IN THE SHOOTS OF THE FERGUSON VEIN AS IN SHOOTS OF THE ORIGINAL VEIN. NATIVE GOLD IN RIBBON QUARTZ.
Comment (Production): THE MINE HAS BEEN AMONG THE 10 HIGHEST PRODUCING MINES IN THE COUNTY, TOTAL PRODUCTION BEING IN EXCESS OF $3,350,000. CLAIMS OF THE FERGUSON HAVE YIELDED AN ESTIMATED PRODUCTION OF $1,250,000 AND RECORDED PRODUCTION BT. 1935 AND 1940 OF $107,000, A TOTAL OF $1,357,000. BT. 1911 AND 1937 CLAIMS OF THE ORIGINAL MINE YIELDED 79,636.79 OZ. OF GOLD, 25,364 OZ. OF SILVER, 340 LBS. OF COPPER AND 134 LB. OF LEAD FROM 175,156 TONS OF ORE. COPPER PRODUCTION LESS THAN 100,000 LBS. - D.O.M. BULL. 144, PT. 3, 1948, P. 269
Comment (Deposit): QUARTZ VEINS, ORE SHOOTS
Comment (Geology): GEOL.DESC: ATTITUDES: FERGUSON VEIN N 21 E 70 W ORIGINAL VEIN - N 8.5 E, 78 E TO A DEPTH OF 400 FT THE ORIGINAL VEIN LIES IN SLATY METASEDIMENTS; BELOW THAT THE WALL ROCK IS COARSE-GRAINED BIOTITE GRANODIORITE WHICH INTRUDES ROUGHLY PARALLEL TO SLATY CLEAVAGE & SCHISTOSITY. FERGUSON VEIN FOLLOWS GRANODIORITE-METASEDIMENTS CONTACT. METASEDIMENTS INCLUDE SLATE, QTZ-BIOTITE HORNFELS. GRAPHITE-MICA SCHIST & SOME QUARTZ-BIOTITE GNEISS. NUMEROUS ORE SHOOTS AVE 4-5 FT THICK AND 100-150 FT WIDE. THREE LATERAL QUARTZ VEINS - THE SPANISH, GOLDEN RULE AND MOONSTONE VEINS, JOIN THE FERGUSON VEIN FROM THE NE.
Comment (Deposit): TEN PATENTED CLAIMS, THE ORIGINAL , ORIGINAL NO. 2, SO. ORIGINAL EXT. EL PORTAL, ANDERSON, NO. EXT. OF THE ANDERSON, GOLDEN RULE, GOLDEN RULE NO. 2, MOONSTONE AND MOONSTONE NO. 2, TOTALING ABOUT 190 ACRES.
Comment (Workings): 9 LEVELS TO MAIN SHAFT OF ORIGINAL MINE. AT 650 LEVEL A 1200 FT CROSSCUT CONNECTS W. FERGUSON VEIN WHICH IS DEVELOPED BY SHAFT A 5 ADIT LEVELS. TOTAL DRIFTS ARE THOUSANDS OF FEET. SUPERFICIAL WORKINGS NEARBY.
References
Reference (Deposit): CASTELLO, W. O., 1921 , MARIPOSA COUNTY: 17TH REPORT STATE MINERALOGIST ( FOR 1920 ), P. 131 .
Reference (Production): BOWEN & GRAY, 1957
Reference (Deposit): CLARK, W. B., 1970 , GOLD DISTRICTS OF CALIF.: CDM BULL. 193 , P. 37-38 .
Reference (Deposit): BOWEN, O. E., JR., & GRAY, H., JR., 1957 , MINES AND MINERAL DEPOSITS OF MARIPOSA COUNTY, CALIF.: CALIF. JOUR. MINES & GEOL., VOL. 53 , NOS. 1 & 2 , P. 85 - 90 , 250 , 551 .
Reference (Deposit): BOWEN, O. E., 1962 , MINES NEAR YOSEMITE: CDM MINERAL INFO. SERVICE, VOL 15 , NO 3 , P. 2 .
California Gold
"Where to Find Gold in California" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in California. Read more: Where to Find Gold in California.
